Dabbing brush



April 24, 1 G. M. WILCOX ET AL 2,550509 DABBING BRUSH Filed Jan. 9, 1948 s Sheets-Sheet 1 lNVENTbRS ATTORN EY April 24, 1951 G. ..w|| cox ET AL 2,550,509

DABBING BRUSH Filed Jan. 9, 1948 5 Sheets-Sheet 2 INVENTOR 5 BY 4M:

ATTORNEY p 5 G. M. WILCOX ET AL 2,

' D'ABBING BRUSH Filed Jan. 9, 1948 y s Shets-Sheet s ATTORNEY Patented Apr. 24, 1951 UNITED STATES PATENT OFFICE,

Granville M. Wilcox,

l The present invention relates to textile machinery, and has particular reference to dabbing brush constructions.

DABBING' BRUSH Providence, and Frank DAngelo, Esrnond, R. I., assignors to P. W.

Products Corporation, Esmond, R. L, a corporation of Rhode Island Application January 9, 1948, Serial No. 1,310

4 Claims. (01. 19124) The principal objectof the invention is to prov vide an improved dabbing brush for combing wool fibres. Another object of the invention is to provide a rotating dabbing brush which wears evenly over its entire surface.

A further object of the invention is to provide a novel mechanism for rotating a dabbing brush in: a step-by-step manner during the dabbing operation. With the above and other objects and advantageous features in view, the invention consists of a novel arrangement of parts more fully disclosed in the detailed description following, in .conjunction with the accompanying drawings, and more specifically defined in the claims appendedthereto.

In the drawings: Fig. 1 is a perspective detail view illustrating the mounting of the 'dabbing-brush and its operating mechanism;

Fig. 2is an elevation of the rocker mechanism;

Fig. 3 is a plan view of Fig. 2;

Fig. 4 is a perspective view of the dabbing brush assembly;

Fig. 5 is a perspective view of the dabbing brush housing, in reversed position;

Fig. 6 is a detail perspective of the housing lock;

Fig. 7 is a perspective view of the brush element;

Fig. 8 is an enlarged sectional detail through the brush gear block; and

Fig. 9 is a section on the line 9-9 of Fig. 8.

It has been found desirable to mount a rotatable dabbing brush in a Noble type combing machine, which is periodically turned in a stepby-step manner during the dabbing operation so as to change the dabbing surface at the point of hardest wear with each turn of the comb rock, thus wearing the brush evenly and providing a long serviceable life. The Noble type machine has rotating concentric large and small circles which have combing pins and are tangent at a common point, and the dabbing brush is mounted precisely at the junction of the large and small circles, so that all the fibres are comb-ed and none of the fibres are pulled over the circle pin points; the normal dabbing speed for fine fibres is about one thousand times per minute.

Referring to the drawings, the combing machine I0 has a large rotating circle I l and a small rotating circle l2, each having combing pins l3 upstanding. therefrom. The dabbing brush I4 is secured to a reciprocating frame it for rapid reciprocation, and is positioned directly over the junction of the large and small circles, as illustrated.

The dabbing brush I 4 is intermittently r0- tated, as it dabs, by suitable mechanism, the preferred mechanism including an actuating pin It on the small circle which periodically engages as it revolves, the outer end i! of a lever l8 keyed to a vertical rod I9 which is rotatably mounted in a support 20 secured to the combing machine framework, a spring 2! being secured to the rod l9 and to the framework to pull the rod l9 and lever i8 back after engagement of the lever end with the actuating pin.

The upper end of the rod 19 has a plate :22 keyed thereto, which is slotted to provide spaced arms 23 within which a roller 24 is rotatably positioned, the roller being mounted on a shaft 25 journaled in the arms 23 and locked in place by end nuts 26. The roller is thus periodically swung forwardly during each rotation of the small circle, to actuate the brush rotating mechanism as hereinafter explained.

see Fig. 5, has a generally circular upper plate 35 provided with an integral partial flange 36 having an annular recess 31, a flange closure element 38 being keyed to the upper plate as indicated at 39 and having a plate portion 40 which aligns with the upper plate 35 to complete a circle, and a flange 4| which is recessed as indicated at 42, whereby the brush element is locked in the housing by inserting the'thin annular rim 3! in the annular recess 31 and closing the closure element 38. A firm lock is obtained by providing a slot 43 in the end of the flange 36and an extension plate tab 44 in'the corresponding end of the closure flange 4|, the flange 36 and the tab 44 having aligned openings 45, 46 to receive a lock pin 41, see Fig. 6.

A fixed brush 48 is secured to the outer surface of the housing flange 36 by a support 49, see Fig. 4, to keep the brushed fibres within the larger combing circle, and the housing upper plate 35 is slotted as indicated at 59 to receive lever the lower end of a spur gear 51 which is pivotally mounted as hereinafter described, to freely revolve in the slot 58. As shown in Fig. 5, the annular recess 31 is positioned below the lower surface of the upper plate, whereby the brush element 21 when mounted in the housing will freely revolve in the annular recess 31 and the closure recess i2 with its ring gear 29 meshing with the spur gear 5|, see Figs. 8 and 9.

The spur gear 5% is keyed to a shaft 52 which.

is rotatably mounted in a block 53, secured to the upper surface of the housing, the outer end 54 of the shaft 52 being formed as a ratchet wheel 55. Referring now to Fig. 4, a lever 55 is mounted on the shaft 52, and has its lower end 51 positioned between two spaced pins 58, 59 on a rectangular frame 69 which is slidably mounted on the side of the block 53 by means of slotted holders 6i block 53. The upper portion of the frame 60 has an upstanding arm 62 to which a slanting impact bar (it is secured, for periodically receiving the impact of the roller 24, the frame 69 being returned by a spring 65 secured to the gear block, and a ratchet latch 55 is pivotally mounted on the upper end of the lever '56 to engage the teeth of the ratchet wheel and move the wheel upon each actuation of the lever 5' 3.

The operation of the novel dabbing'brush is now clear. As the brush is reciprocated, the i8 is periodically engaged to move the roller 24 against the impact bar 53, thus shifting the frame 60 against its spring 5 1, which swings the lever 56 and turns the spur gear 5| through the ratchet wheel 55 and the ratchet tooth or latch 65, the spring 2| returning the lever 18 to its initial position. The gear 55 in turn rotates the ring gear 29 and thus turns the brush element. Although only one actuating pin It has been shown, whereby the brush element turns one step for each revolution of the small combing circle, additional pins may be mounted to thus increase the brush turning. The brush thus turns step-by-step at slow speed as it is reciprocated at high speed.

Since the brush element is removably mounted in the housing, it may be quickly replaced when worn; the working parts will not collect lint or dust, as the spur gear and the ring gear and the sliding surfaces of the brush element and the housing are completely closed.

Although we have described one specific embodiment of the invention, it is obvious that changes in the size, shape and arrangement of the parts may be made, without departing from the spirit and the scope of the invention as defined in the appended claims.

We claim:

1. Dabbing brush mechanism for Noble type combing machines comprising a brush housing adapted to be attached to reciprocating mechanism, a brush element rotatably mounted in said housing and having an annular gear, a spur gear rotatably mounted on the housing and meshing with the annular gear, a ratchet wheel which are bolted to the associated with said spur gear, said spur gear and said ratchet wheel having a common shaft,

and a lever pivoted to the housing and having a ratchet latch pivoted thereon and engaging said ratchet wheel and adapted to be intermittently actuated.

2. Dabbing brush mechanism for Noble type combing machines comprising a brush housing adapted to be attached to reciprocating mechanism, a brush element rotatably mounted in said housing and having an annular gear, a spur gear rotatably mounted on the housing and meshing with the annular gear, a ratchet wheel associated with said spur gear, said spur gear and said ratchet wheel having a common shaft, and a lever pivoted to the housing and having a ratchet latch pivoted thereon and engaging said ratchet wheel and adapted to be intermittently actuated, said housing having a closed upper surface and a gear block mounted thereon, and said spur gear being mounted in the gear block.

3. Dabbing brush mechanism for Noble type combing machines comprising a brush housing adapted to be attached to reciprocating mechanism, a brush element rotatably mounted in said housing and having an annular gear, a spur gear rotatably mounted on the housing and meshing with the annular gear, a ratchet wheel associated with said spur gear, said spur gear and said ratchet wheel having a common shaft, and a lever pivoted to the housing and having a ratchet latch pivoted thereon and engaging said ratchet wheel and adapted to be intermittently actuated, said housing having a main portion and a side portion hinged to the main portion at one end and releasably locked to the main portion at the other end, for facilitating insertion and removal of the brush element.

4. Dabbing brush mechanism for Noble type combing machines comprising a brush housing adapted to be attached to reciprocating mechanism, a brush element rotatably mounted in said housing and having an annular gear, a spur gear rotatably mounted on the housing and meshing with the annular gear, a ratchet wheel associated with said spur gear, said spur gear and said ratchet wheel having a common shaft, a lever pivoted to the housing and having a ratchet latch pivoted thereon and engaging said ratchet wheel,

and an actuating element engaging said lever and slidably mounted on said housing and adapted to be intermittently reciprocated.

GRANVILLE M. WILCOX. FRANK D ANGELO.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,919,786 Hardy July 25, 1933 2,423,800 Silva July 8, 1947 FOREIGN PATENTS Number Country Date 1,294 Great Britain of 1878 1,674 Great Britain of 1864 266,495 Great Britain Mar. 3, 1927 

